1 files changed, 79 insertions, 0 deletions
diff --git a/lexlib/Accessor.cxx b/lexlib/Accessor.cxx
new file mode 100644
index 000000000..5adaaa2f7
--- /dev/null
+++ b/lexlib/Accessor.cxx
@@ -0,0 +1,79 @@
+// Scintilla source code edit control
+/** @file KeyWords.cxx
+ ** Colourise for particular languages.
+ **/
+// Copyright 1998-2002 by Neil Hodgson <neilh@scintilla.org>
+// The License.txt file describes the conditions under which this software may be distributed.
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <assert.h>
+#include <ctype.h>
+
+#include "ILexer.h"
+#include "Scintilla.h"
+#include "SciLexer.h"
+
+#include "PropSetSimple.h"
+#include "WordList.h"
+#include "LexAccessor.h"
+#include "Accessor.h"
+
+#ifdef SCI_NAMESPACE
+using namespace Scintilla;
+#endif
+
+Accessor::Accessor(IDocument *pAccess_, PropSetSimple *pprops_) : LexAccessor(pAccess_), pprops(pprops_) {
+}
+
+int Accessor::GetPropertyInt(const char *key, int defaultValue) {
+	return pprops->GetInt(key, defaultValue);
+}
+
+int Accessor::IndentAmount(int line, int *flags, PFNIsCommentLeader pfnIsCommentLeader) {
+	int end = Length();
+	int spaceFlags = 0;
+
+	// Determines the indentation level of the current line and also checks for consistent
+	// indentation compared to the previous line.
+	// Indentation is judged consistent when the indentation whitespace of each line lines
+	// the same or the indentation of one line is a prefix of the other.
+
+	int pos = LineStart(line);
+	char ch = (*this)[pos];
+	int indent = 0;
+	bool inPrevPrefix = line > 0;
+	int posPrev = inPrevPrefix ? LineStart(line-1) : 0;
+	while ((ch == ' ' || ch == '\t') && (pos < end)) {
+		if (inPrevPrefix) {
+			char chPrev = (*this)[posPrev++];
+			if (chPrev == ' ' || chPrev == '\t') {
+				if (chPrev != ch)
+					spaceFlags |= wsInconsistent;
+			} else {
+				inPrevPrefix = false;
+			}
+		}
+		if (ch == ' ') {
+			spaceFlags |= wsSpace;
+			indent++;
+		} else {	// Tab
+			spaceFlags |= wsTab;
+			if (spaceFlags & wsSpace)
+				spaceFlags |= wsSpaceTab;
+			indent = (indent / 8 + 1) * 8;
+		}
+		ch = (*this)[++pos];
+	}
+
+	*flags = spaceFlags;
+	indent += SC_FOLDLEVELBASE;
+	// if completely empty line or the start of a comment...
+	if ((ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r') ||
+			(pfnIsCommentLeader && (*pfnIsCommentLeader)(*this, pos, end-pos)))
+		return indent | SC_FOLDLEVELWHITEFLAG;
+	else
+		return indent;
+}